Sorry for your headache and loss here! It’s a real pain but one that I unfortunately think will happen quite a bit with the popularity of hive. I know it’s hindsight and hopefully something you’ll do now going forward but it’s always best to send a test transaction only worth 1$ or so. I’ve lost some funds myself but it was in the losing of funds that you learn things like this.
Hopefully you can get back to a good place with the funds in the near future!